The EMA8H2050P20F60D from ECHO Microwave is a Band Pass Filter with Frequency 2.04 to 2.06 GHz, Insertion Loss 3 dB, Rejection 60 dB @ 1940 MHz, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMA8H2050P20F60D can be seen below.